Microsoft to Stop Providing Telephony-Based Authentication Methods for MFA in February 2027

Question

In an important announcement for all tenants, Microsoft revealed that Entra ID will no longer provide SMS one-time codes or voice calls for MFA challenges after February 1, 2027. Tenants can continue to use telephony-based authentication methods after that date, but only by purchasing a service from a telecom provider. This is arguably the biggest change in Entra ID authentication since mandatory MFA for administrative interfaces – and we have a PowerShell script to help identify the affected accounts.
https://office365itpros.com/2026/07/14/entra-sms-one-time-code/

ricardor1 · Answer

Can You share the script please? ty

nkululeko1 · Answer

Good day, does anyone know of any other alternative MFA for staff not using smartphones and for organisations not providing work phones? These are people who relied on work Voip phones for MFA via phone call. Please assist

jamesmunro1 · Answer

We are considering hardware OTP tokens or FIDO2-compatible tokens; however, these come at a cost.

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Microsoft to Stop Providing Telephony-Based Authentication Methods for MFA in February 2027

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